little-W | Studying gulls:
Black-headed Gull, 3cy, M[Lithuania HA08.566]
little-W | Studying gulls:
Black-headed Gull, >12cy, M[Stockholm 6400068]
little-W | Studying gulls:
Black-headed Gull, 3cy, M[Lithuania HA08.566]
little-W | Studying gulls:
Black-headed Gull, >5cy, M[Arnhem 3618180]
little-W | Studying gulls:
Black-headed Gull, adult, W[ZMN]
little-W | Studying gulls:
Black-headed Gull, >5cy, R[1.V]
little-W | Studying gulls:
Black-headed Gull, >3cy, R[7.1]
little-W | Studying gulls:
Black-headed Gull, >3cy, R[3.5]
little-W | Studying gulls:
Black-headed Gull, >3cy, R[8.V]
little-W | Studying gulls:
Black-headed Gull, 6cy, R[8.C]
little-W | Studying gulls:
Black-headed Gull, >4cy, R[5.1]
little-W | Studying gulls:
Black-headed Gull, 5cy, R[0.V]
little-W | Studying gulls:
Black-headed Gull, >5cy, R[1.8]
little-W | Studying gulls:
Black-headed Gull, 6cy, R[E.4]
little-W | Studying gulls:
Black-headed Gull, >3cy, R[0.2]
little-W | Studying gulls:
Black-headed Gull, >3cy, R[6.2]
little-W | Studying gulls:
Black-headed Gull, >3cy, M[Arnhem 3.651.368]
little-W | Studying gulls:
Black-headed Gull, 3cy, M[Kopenhagen 6H-9239]
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Black-headed Gull, M[Brussels 6T74920]
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Black-headed Gull, M[Arnhem 3618180]
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Black-headed Gull adult, M[Helsinki ST251.980]
little-W | Studying gulls:
Black-headed Gull, adult, M[Hiddensee IA067667]
little-W | Studying gulls:
Black-headed Gull, adult, Y[2.M]